McNamara, John K., Mary Scissons, and Sheri Simonot. “Should We ‘Redshirt’ in Kindergarten? A Study of the Effect of Age on Kindergarteners’ Reading Readiness”. Alberta Journal of Educational Research 50, no. 2 (July 1, 2004). Accessed May 4, 2024. https://journalhosting.ucalgary.ca/index.php/ajer/article/view/55051.